Lawn-mower



(No Model.)

F. M. HtINT. LAWN MOWER.

No. 434,787. Patented Aug. 19, 1890.

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UNITED STATES PATENT OFFICE.

FRANK M. HUNT, OF ROUND OAK, GEORGIA.

LAWN-MOWER.

SPECIFICATION forming part of Letters Patent No. 434,787, dated August19, 1890.

Application filed March 19 1890.

To all whom it may concern.-

.Be it known that I, FRANK M. HUNT, a citizen of the United States,residing at Round Oak, in the county of Jones and State of Georgia, haveinvent-ed certain new and useful Improvements in Lawn-Mowers, of whichthe following is a specification, reference being had therein to theaccompanying drawings, in which Figure 1 represents a plan View of myimproved lawn-mower; Fig. 2, a longitudinal vertical sectional viewthereof; and Fig. 3, a transverse vertical section on the line :20 00,Fig. 1.

In the annexed drawings, the letter a designates the frame of themachine, the forward end of which is provided with suitable guardfingersb and cutter-bar b, which are set at right angles to the frame. The rearend of the frame is supported or hung upon an axle g, provided withtransporting-wheels g, the said axle being journaled in bearings 2' '6,secured upon opposite sides of the frame. A handle h is secured to therear end of the frame, for the purpose of pushing the machine about.

J ournaled in bearings ff, secured on opposite sides of the frame infront of the bearings i '5, is a transverse shaft 70', which is provided011 one end with a pinion g intermeshing with a spur-wheel g upon thedrive shaft or wheel.

Secured upon the shaft 70",between the bearings f f, is a wheel orroller is, which is provided with radial spurs or teeth 7c, three beingemployed in this instance. The number of teeth may be varied withoutdeparting Serial No. 844,508. (No model.)

the lower one of these bars being located a little tothe rear of theupper one, and both bars being located in the path of the teeth 70'. Theframe 01 and its arms fit between the bearings f f, and are therebyprotected and guided in their movements, whereby a steady, smoothmotion, free of lateral vibrations, is obtained. To further guide theblock d, I secure on one side of the frame a bent iron or bracket m, andextend the end of the same into a groove formed in the side of the saidblock, as shown in Fig. 3.

The operation of the machine is clear from the drawings, when taken inconnection with the following: The act of moving the machine forwardimparts to the shaft is", through the medium of the large spur-wheel g"and pinion g, a very rapid rotary motion. This rotary motion isconverted into a reciprocating motion by means of the toothed wheel 7.:and the sliding block, which is imparted to the reciprocating cutter-barthrough the medium of the link 0 and angle-lever d. I

In operation, one of the teeth k on the roller 70 strikes against theupper bar 6' and forces, the frame (1 forward a short distance and thenpasses out of the way. Then one of the lower teeth impinges againstthelower bar 8 and throws the frame back again, and so on, the framemoving back and forth at a very rapid rate.

A machine constructed according to my invention will be very simple andcompact, and yet possesses all the advantages of a practical and durablemachine.

The essential advantage of the machine is its great simplicity, whichenables it to be cheaply manufactured, and which renders it stronger andmore durable than more complicated machines.

Having thus fully described my invention, what I claim is- Inalawn-mower, the combination of a frame a, provided with a cuttingapparatus at its forward end and hung upon an axle and drivingwheels atits rear end, a handle at its rear end, bearings ff mounted uponopposite sides of the frame, a transverse shaft journaled in thesebearings and carrying a roller provided with radial pins k, a slidingframe (I, provided cutting apparatus, all arranged as and for the withtwo pairs of arms e, one pair extending purposes described. to above theroller and the other below the same, In testimony whereof I affix mysignature in and both provided with pins or bars e,a lapted presence oftwo Witnesses.

5 to engage the radial pins 70, the said frame [it- FRANK ,M. HUNT.

ting and Working on the main frame and be- \Vitnesses: tween thebearings ff, a guiding-pin m, and E. L. SMITH, means connecting the saidsliding frame to the J OHN F. CHILDS.

